我正在尝试在非常低的温度（<40C）下调试我们的嵌入式 linux 系统。问题是它并不总是正确启动，我试图找出原因。经过一些分析，我看到内核在启动期间进入恐慌状态，输出如下：
can: controller area network core (rev 20090105 abi 8)
NET: Registered protocol family 29
can: raw protocol (rev 20090105)
/opt/elinos-5.1/linux/linux-ppc-2.6.34/drivers/rtc/hctosys.c: unable to open rtc
device (rtc0)
ADDRCONF(NETDEV_UP): eth0: link is not ready
IP-Config: Complete:
device=eth0, addr=192.168.100.100, mask=255.255.255.0, gw=255.255.255.255,
host=192.168.100.100, domain=, nis-domain=(none),
bootserver=192.168.100.20, rootserver=192.168.100.20, rootpath=
Freeing unused kernel memory: 156k init
init started: BusyBox v1.6.1 (2013-06-03 11:53:03 CEST) multi-call binary
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
udevd-work[84]: '/sbin/modprobe -bv of:NioctlT<NULL>Cfsl,mpc5125-ioctl' unexpect
ed exit with status 0x000b
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Badness at /opt/elinos-5.1/linux/linux-ppc-2.6.34/kernel/sched.c:3574
NIP: c001acfc LR: c001ace4 CTR: c01c5fa4
REGS: c790f7c0 TRAP: 0700 Not tainted (2.6.34.7-ELinOS-146-ipipe)
MSR: 00021032 <ME,CE,IR,DR> CR: 28000482 XER: 20000000
TASK = c3ba6cb0[71] 'udevd' THREAD: c78e0000
GPR00: 00000000 c790f870 c3ba6cb0 00000001 c790f8b8 00000008 00000000 00000000
GPR08: 00000000 c0370000 00000001 c0370000 5d0fabd2 10033420 10019a6c 00000000
GPR16: 10019328 100194d4 100194c0 1002bad0 10019328 10019474 bfa35428 100192fc
GPR24: 100321f0 00000000 00000000 c649e840 00000000 00000901 00000000 00000000
NIP [c001acfc] add_preempt_count+0x48/0xac
LR [c001ace4] add_preempt_count+0x30/0xac
Call Trace:
Instruction dump:
409e0038 54290024 8009000c 2f800000 40bc0028 48133285 2f830000 419e0068
3d20c037 8009d298 2f800000 409e0058 <0fe00000> 48000050 3d20c037 8009d130
Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0x00000000
Oops: Kernel access of bad area, sig: 11 [#1]
PREEMPT LTT NESTING LEVEL : 0
ORION
last sysfs file: /sys/devices/platform/gpio-keys-polled/input/input0/uevent
NIP: 00000000 LR: 00000000 CTR: c01c7778
REGS: c790f990 TRAP: 0400 Tainted: G W (2.6.34.7-ELinOS-146-ipipe)
MSR: 20009032 <EE,ME,IR,DR> CR: 28000484 XER: 20000000
TASK = c3ba6cb0[71] 'udevd' THREAD: c78e0000
GPR00: 00000000 c790fa40 c3ba6cb0 00000008 00000008 00000008 c7912804 c0348ba4
GPR08: 00000047 c78a5414 00000000 00000004 28000482 10033420 10019a6c 00000000
GPR16: 10019328 100194d4 100194c0 1002bad0 10019328 10019474 bfa35428 100192fc
GPR24: 100321f0 00000000 c790f618 00200200 00000000 c790fa34 00200200 00000000
NIP [00000000] (null)
LR [00000000] (null)
Call Trace:
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Kernel panic - not syncing: Fatal exception in interrupt
Call Trace:
Rebooting in 180 seconds..
INFO: RCU detected CPU 0 stall (t=2500 jiffies)
INFO: RCU detected CPU 0 stall (t=10000 jiffies)
INFO: RCU detected CPU 0 stall (t=17500 jiffies)
INFO: RCU detected CPU 0 stall (t=25000 jiffies)
INFO: RCU detected CPU 0 stall (t=32500 jiffies)
INFO: RCU detected CPU 0 stall (t=40000 jiffies)
System Halted, OK to turn off power
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kernel BUG at /opt/elinos-5.1/linux/linux-ppc-2.6.34/mm/vmalloc.c:1228!
Oops: Exception in kernel mode, sig: 5 [#2]
PREEMPT LTT NESTING LEVEL : 0
ORION
last sysfs file: /sys/devices/platform/gpio-keys-polled/input/input0/uevent
NIP: c009b0cc LR: c0013518 CTR: 00000000
REGS: c790f7c0 TRAP: 0700 Tainted: G D W (2.6.34.7-ELinOS-146-ipipe)
MSR: 00029032 <EE,ME,CE,IR,DR> CR: 28000484 XER: 20000000
TASK = c3ba6cb0[71] 'udevd' THREAD: c78e0000
GPR00: 078fe000 c790f870 c3ba6cb0 00001000 00000001 00000001 c9000000 fddff000
GPR08: ffffffff 000000d0 c001018c c790e000 48000488 10033420 10019a6c 00000000
GPR16: 10019328 100194d4 100194c0 1002bad0 10019328 10019474 bfa35428 100192fc
GPR24: c001018c 000000d0 00001000 ffffffff c9000000 fddff000 00000001 00000001
NIP [c009b0cc] __get_vm_area_node+0x68/0x204
LR [c0013518] __ioremap_caller+0x90/0x134
Call Trace:
Instruction dump:
7c9e2378 93e1003c 7cbf2b78 90010044 9261000c 92810010 92a10014 92c10018
92e1001c 93410028 800b000c 5400016e <0f000000> 70a00001 41820030 7c7e0034
Kernel panic - not syncing: Fatal exception in interrupt
Call Trace:
Rebooting in 180 seconds..:
有人可以给我一些提示如何解决这个问题吗？我想要了解系统的哪个组件（即内存芯片等）导致此故障。我会很高兴听到任何想法。谢谢。